Explanation:
The filament of a electric bulb glows because of the heating effect of electric current. As the current passes through the bulb it heats the filament which gives off light.
Answer:
Planet X, because the sun exerts a greater gravitational force on it than on planet W
Explanation:
i-
Answer:
Insulin helps control blood glucose levels by signaling the liver + muscle fat cells to take glucose from the blood. It then helps the cells to take the glucose to be use for energy, and if the body has sufficient energy, insulin signals the liver to take up glucose and store it as glycogen.
It is the human influence rather than natural influence, as the other definition I found is it's basically humans causing pollution in the environment. I hope this helps!